The 1920s brought a revolution to Mexico, along with the widespread persecution of Catholics. Missionaries were expelled from the country, Catholic seminaries and schools were closed, and the Church was forbidden to own property. Priests and laymen were told to denounce Jesus and their faith in public; if they refused, they faced not just punishment but torture and death. During this time of oppression and cruelty, the Knights of Columbus did not retreat in Mexico but grew dramatically, from 400 members in 1918 to 43 councils and 6,000 members just five years later. In the United States at the time,...